pinctrl: intel: Constify intel_get_community() returned object

There is nothing prevents us from constifying intel_get_community()
returned object. Do it to make code more robust.

Acked-by: Mika Westerberg <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>

Author: andy-shev

drivers/pinctrl/intel/pinctrl-baytrail.c

@@ -560,9 +560,10 @@ static DEFINE_RAW_SPINLOCK(byt_lock);
 static void __iomem *byt_gpio_reg(struct intel_pinctrl *vg, unsigned int offset,
 				  int reg)
 {
-	struct intel_community *comm = intel_get_community(vg, offset);
+	const struct intel_community *comm;
 	u32 reg_offset;
 
+	comm = intel_get_community(vg, offset);
 	if (!comm)
 		return NULL;
 

drivers/pinctrl/intel/pinctrl-intel.c

@@ -114,9 +114,9 @@ struct intel_community_context {
 #define pin_to_padno(c, p)	((p) - (c)->pin_base)
 #define padgroup_offset(g, p)	((p) - (g)->base)
 
-struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin)
+const struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin)
 {
-	struct intel_community *community;
+	const struct intel_community *community;
 	int i;
 
 	for (i = 0; i < pctrl->ncommunities; i++) {
@@ -236,7 +236,7 @@ enum {
 
 static int intel_pad_locked(struct intel_pinctrl *pctrl, unsigned int pin)
 {
-	struct intel_community *community;
+	const struct intel_community *community;
 	const struct intel_padgroup *padgrp;
 	unsigned int offset, gpp_offset;
 	u32 value;
@@ -1368,7 +1368,7 @@ static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
 	int ret, i;
 
 	for (i = 0; i < pctrl->ncommunities; i++) {
-		struct intel_community *community = &pctrl->communities[i];
+		const struct intel_community *community = &pctrl->communities[i];
 
 		ret = intel_gpio_add_community_ranges(pctrl, community);
 		if (ret) {

drivers/pinctrl/intel/pinctrl-intel.h

@@ -264,7 +264,7 @@ int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
 
 extern const struct dev_pm_ops intel_pinctrl_pm_ops;
 
-struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin);
+const struct intel_community *intel_get_community(struct intel_pinctrl *pctrl, unsigned int pin);
 
 int intel_get_groups_count(struct pinctrl_dev *pctldev);
 const char *intel_get_group_name(struct pinctrl_dev *pctldev, unsigned int group);

drivers/pinctrl/intel/pinctrl-lynxpoint.c

@@ -211,7 +211,7 @@ static void __iomem *lp_gpio_reg(struct gpio_chip *chip, unsigned int offset,
 				 int reg)
 {
 	struct intel_pinctrl *lg = gpiochip_get_data(chip);
-	struct intel_community *comm;
+	const struct intel_community *comm;
 	int reg_offset;
 
 	comm = intel_get_community(lg, offset);